Final answer:
Skilled workers may use signaling through certifications to demonstrate their qualifications. The statement about efficiency wages being set below industry average is false; they are actually set above the average to incentivize and retain quality workers.
Step-by-step explanation:
In the context of asymmetric information within the labor market, signaling is a method skilled workers might use to demonstrate their qualifications to potential employers like Arjun, the factory manager. When skilled workers enroll or pay for a certification course, they are signaling their skill level and commitment, which helps employers like Arjun differentiate between skilled and unskilled candidates.
Regarding the true/false question, the statement is False. Efficiency wages are wages that are set above the industry average to increase productivity and reduce turnover by attracting higher quality workers and incentivizing them to work harder to keep their jobs.
Signaling, efficiency wages, and pre-screening candidates are key practices that can mitigate the issue of asymmetric information in the labor market by revealing true employee attributes.